A memory array having decreased cell sizes and having transistors with
increased channel widths. More specifically, pillars are formed in a
substrate such that sidewalls are exposed. The sidewalls of the pillars
and the top surface of the pillars are covered with a gate oxide and a
polysilicon layer to form a channel through the pillars. The current path
through the channel is approximately equal to twice the height of the
pillar plus the width of the pillar. The pillars are patterned to form
non-linear active area lines having angled segments. The polysilicon
layer is patterned to form word lines that intersect the active area
lines at the angled segments.